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Finding the Fourth Proportional to 297,830.40, 445,449.60 and 266,467.20

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Solution

The fourth proportional to 297,830.40, 445,449.60 and 266,467.20 is: 398,541.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,830.40 : 445,449.60 = 266,467.20 : x
  2. Step 2: Convert to fraction form
    297,830.40/445,449.60 = 266,467.20/x
  3. Step 3: Cross multiply
    297,830.40x = 445,449.60 × 266,467.20
  4. Step 4: Simplify right side
    297,830.40x = 118,697,707,653.12
  5. Step 5: Solve for x
    x = 118,697,707,653.12/297,830.40
  6. Step 6: Final answer
    x = 398,541.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.